The clean fuels of ammonia and methanol are used to replace diesel in shipbuilding industry, but there exists corrosion risk for the engine parts in combustion products. The corrosion fatigue behavior of cylinder liners cast iron in simulated combustion product solutions of ammonia, methanol and diesel fuels were investigated. The corrosion rate and corrosion fatigue sensitivity in the three simulated solutions are ammonia fuel < diesel fuel < methanol fuel. The type B graphite causes more severe matrix corrosion than type A flake graphite, and the ternary phosphorus eutectic has no significant effect on corrosion. For ammonia fuel, fatigue damage is dominated by stress concentration induced by flake graphite and phosphorous eutectic. For methanol and diesel, fatigue damage is mainly dominated by corrosion process induced by flake graphite.

中文翻译：

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铸铁在氨和甲醇燃料模拟燃烧产物溶液中的腐蚀疲劳行为


在造船工业中，氨和甲醇等清洁燃料被用来替代柴油，但燃烧产物中的发动机部件存在腐蚀风险。研究了气缸套铸铁在氨、甲醇和柴油燃料的模拟燃烧产物溶液中的腐蚀疲劳行为。三种模拟溶液中的腐蚀速率和腐蚀疲劳敏感性分别为氨燃料、< 柴油燃料、< 甲醇燃料。B 型石墨比 A 型鳞片石墨引起更严重的基体腐蚀，三元磷共晶对腐蚀无显著影响。对于氨燃料，疲劳损伤主要由片状石墨和磷共晶引起的应力集中。对于甲醇和柴油，疲劳损伤主要以片状石墨诱导的腐蚀过程为主。